The game will make players re-insert disc 1 as they make their way towards the end levels. BioWare producer Jessie Houston explained to IGN just what happens.

"Players will start with Disc 1 for the introduction and early level choices, then go through a funnel level of sorts, where they will need to switch to Disc 2," Houston said. "From there they will play the middle portion of the game, which is mostly on Disc 2. Then after another funnel point in the story they'll go back to Disc 1."

Houston noted this decision had nothing to do with combating potential piracy, and was done to help alleviate breaking up the gameplay during the middle portions of Mass Effect 2.

"The decision was made due to the nature of having to go to two discs for what is a non-linear game and fitting the right amount of content onto each of the discs," he added. "This way players won't have to swap their discs multiple times during the middle of the game."